Table 1.

Demographic characteristics at the baseline visit and revisit.

	Baseline visit			Revisit			T2–T1e Binge drinkers	T2–T1 Controls
	Binge drinkers (n = 17)	Controls (n = 17)	p	Binge drinkers (n = 17)	Controls (n = 17)	p	p	p
Female (n)	n = 7	n = 7		n = 7	n = 7
Age	14.90 (1.01)	14.82 (0.75)	0.81	16.94 (1.28)	16.72 (1.19)	0.60	<0.00001	<0.00001
Pubertal Statusa	4.50 (0.63)	4.00 (0.82)	0.06	4.81 (0.40)	4.75 (0.45)	0.78	0.06	0.005
IQb	111.59 (9.25)	112.00 (7.23)	0.89	114.18 (11.08)	110.82 (9.90)	0.36	0.18	0.68
Socioeconomic statusc	31.41 (15.57)	30.59 (8.54)	0.85	35.80 (14.86)	30.33 (12.51)	0.48	0.23	0.14
% Risky decisions	69.68 (24.13)	59.46 (22.56)	0.21	74.26 (19.78)	66.02 (24.70)	0.29	0.44	0.29
RMSd (Head movement)	0.17 (0.09)	0.32 (0.26)	0.03*	0.22 (0.16)	0.24 (0.18)	0.71	0.31	0.12
CDIf	40.76 (4.12)	41.29 (5.88)	0.76	43.50 (7.93)	38.93 (4.77)	0.07	0.20	0.19
STAIg	40.89 (5.19)	40.35 (7.30)	0.81	37.10 (6.04)	37.95 (7.39)	0.72	0.053	0.13

Mean (standard deviation).

^aTanner's Sexual Maturation Scale (Taylor et al., 2001); missing for one binge-drinking and one control youth at revisit.

^bWechsler Abbreviated Scale of Intelligence (Wechsler, 1999).

^cHollingshead Index of Social Position; higher scores indicate lower SES (Hollingshead, 1957); missing for twelve binge-drinking and eight control youth at revisit.

^dRoot mean square.

^eRevisit vs. Baseline Visit.

^fChildren's Depression Inventory (Kovacs, 1985); missing for three binge-drinking and two control youth at revisit.

^gState-Trait Anxiety Inventory (Spielberger et al., 1973).